字符串与Unicode转换

/// <summary>
/// 字符串转Unicode
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static string String2Unicode(this string source)
{
	byte[] bytes = System.Text.Encoding.Unicode.GetBytes(source);
	System.Text.StringBuilder stringBuilder = new System.Text.StringBuilder();
	for (int i = 0; i < bytes.Length; i++)
	{
		stringBuilder.AppendFormat("\\u{0}{1}", bytes[i   1].ToString("x").PadLeft(2, '0'), bytes[i].ToString("x").PadLeft(2, '0'));
	}
	return stringBuilder.ToString();
}

/// <summary>
/// Unicode转字符串
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static string Unicode2String(this string source)
{
	return new System.Text.RegularExpressions.Regex(@"\\u([0-9A-F]{4})", System.Text.RegularExpressions.RegexOptions.IgnoreCase | System.Text.RegularExpressions.RegexOptions.Compiled).Replace(
		source, x => string.Empty   Convert.ToChar(Convert.ToUInt16(x.Result("$1"), 16)));
}